Ruby Labs

Full-stack Engineer

• Design, develop, and maintain high-performance applications and APIs using Next.js, TypeScript, and Redis.
• Architect scalable front-end and back-end systems optimized for performance, reliability, and maintainability.
• Build efficient data caching, queues, and real-time data flows using Redis.
• Integrate and develop AI-powered product features and workflows.
• Ensure system stability through proper error handling, monitoring, and logging.
• Maintain clean and scalable codebases following SOLID principles and clean architecture.
• Lead a product engineering squad responsible for a major area of the product.
• Manage the squad’s engineering workflow, technical execution, releases, and deployment cycles.
• Conduct code reviews and uphold high engineering standards across the squad.
• Mentor junior and mid-level engineers and support their technical growth.
• Work closely with product leadership and management to align engineering execution with product priorities.
• Translate management and product leadership feedback into clear engineering priorities and execution.
• Collaborate with designers, product managers, engineers, QA specialists, the data team, and AI engineering team to deliver high-quality product features.
• Break down complex product requirements into clear technical implementation plans.
• Ensure consistent engineering velocity and delivery quality within the squad.
• Maintain documentation of system architecture, APIs, and development workflows.

Lead Full-Stack Engineer

Backend Engineer

• Deliver new backend features with a focus on scalability, performance, and reliability.
• Maintain, optimize, and improve existing services and infrastructure.
• Design, deploy, and operate backend services across AWS, Cloudflare, and other environments.
• Implement and evolve monitoring and observability using tools such as Sentry, OpenTelemetry (OTel), logging, alerting, and related platforms.
• Investigate and resolve production issues across distributed systems.
• Write clean, maintainable code aligned with SOLID principles, system design, and backend best practices.
• Lead incident investigations, root cause analysis, and system reliability improvements.
• Contribute to architectural decisions, documentation, and infrastructure planning.
• Collaborate with high standards for communication, ownership, and delivery.

Senior Backend Engineer

General Counsel

• Draft, review, and maintain corporate governance documents across all group entities (board resolutions, written consents, articles, memoranda, corporate policies, terms etc.).
• Prepare and maintain intra-group agreements, including but not limited to: intercompany service agreements, licensing and IP agreements, cost-sharing arrangements, management and advisory agreements, loan agreements, business plans and transfer pricing-related documentation (in coordination with tax advisors).
• Develop and continuously update corporate records, and supporting documentation evidencing each entity's genuine activity and economic substance in its jurisdiction of incorporation / residence.
• Lead the preparation and ongoing maintenance of comprehensive defence files (economic substance files) for group entities, ensuring they are audit- and enquiry-ready at all times.
• Ensure the legal dimension of group-wide tax compliance by reviewing, drafting, and optimising contracts and corporate documentation to support and protect the group's transfer pricing and tax positions together with the tax department.
• Monitor regulatory and legislative changes in all jurisdictions of presence and proactively advise the management on risks and required actions.
• Manage legal aspects of the company's equity incentive and stock vesting programs—including drafting and administering vesting/share purchase agreements, overseeing share transfers, issuances, and cap table management, obtaining necessary board/shareholder approvals, and ensuring compliance with applicable securities, contractor, and tax regulations across relevant jurisdictions.
• Manage the group's IP portfolio, including registration, protection, licensing, and enforcement of trademarks.
• Manage all stages of dispute resolution — from pre-litigation claims and regulatory inquiries through formal proceedings — including drafting responses, instructing and overseeing external counsel, controlling strategy, costs, and timelines, and advising management on dispute risk, settlement, and enforcement options.
• Build and manage a network of trusted external legal advisors in key jurisdictions; coordinate engagements, control quality and costs.
• Develop internal legal processes, knowledge management systems, and reporting frameworks.

Senior Legal Counsel

Software Engineer

• Contribute to the development and delivery of new mobile product features.
• Maintain and improve the existing React Native codebase, performance, and stability.
• Define and evolve mobile architecture, system design, and technical strategy.
• Partner with backend, product, and design teams to shape solutions that scale.
• Drive reliability, performance, and observability standards on mobile.
• Own production debugging, incident investigation, and root cause analysis.
• Guide improvements in build systems, CI/CD, releases, testing, and app store deployments.
• Support hiring and help grow a world-class mobile engineering team.
• Champion performance across rendering, navigation, latency, memory, offline behavior, caching, and real-time experiences.

Senior React Native Developer

Product Manager

• Funnel Optimization: Define and implement hypotheses to improve the conversion rate (CR) to purchase and lifetime value (LTV) within the web funnel.
• Data-Driven Strategy: Dive deep into data on the competitive environment and user behavior to propose strategies that drive customer acquisition efficiency and improve CPA.
• Testing Roadmap: Run a robust testing roadmap, driving continuous improvement in the web funnel. You will ensure that strict quarterly KPIs are met and exceeded.
• Cross-Functional Collaboration: Collaborate closely with designers, developers, and other key stakeholders to seamlessly execute optimization strategies, from product requirement documents to execution.
• Agile Ceremonies: Assist Engineering team in leading agile software development ceremonies, including daily standups, grooming, planning, and retrospectives.
• Ownership of Results: Lead the entire growth process, taking full responsibility for results, from hypothesis creation to final implementation and evaluation.
• UA Collaboration: Work hand-in-hand with the User Acquisition (UA) team to build and optimize the full flow, ensuring that every step, from the first user interaction through registration and payment, is optimized for growth.
• User Pain Points: Deeply understand user pain points and behaviors, leveraging this understanding to determine the most effective strategies for selling our product.

Senior Growth Product Manager

Data Analyst

• Partner with Product, Marketing, and Data Teams to define KPIs, success metrics, and decision criteria.
• Create new dashboards, maintain and improve existing reporting (e.g., Product Reports, Marketing Performance Reports), ensuring clarity and trust.
• Deliver full-funnel analysis, identify bottlenecks, and propose improvements or A/B test ideas.
• Lead user behavior analysis (journeys, drop-offs, activation/aha moments) using event data.
• Monitor key metrics and anomalies; escalate issues and communicate updates to stakeholders with defined SLAs.
• Own and maintain event taxonomy and tracking structure (events, properties, naming conventions); validate implementation and business logic alignment.
• Design and build robust, reusable SQL data models (clean layers, consistent definitions, performance-minded queries).
• Mentor Junior/Middle Data Analysts in SQL, validation, funnel/cohort analysis, and experimentation quality; provide regular feedback and guidance.
• Give and receive direct, actionable feedback with peers and the Leadership Team; maintain a high bar for quality in a demanding environment.

Senior AI Data Analyst

• Own product analytics and user behavior tracking across the platform.
• Build, maintain, and optimize Mixpanel dashboards, funnels, cohorts, and reports.
• Monitor core product KPIs (activation, retention, engagement, conversion, feature adoption).
• Perform deep user behavior analysis to identify friction points and opportunities.
• Analyze feature performance before and after releases.
• Run ad hoc analyses for Product Managers and Leadership with fast turnaround.
• Identify trends, anomalies, and performance changes in product metrics.
• Support A/B tests and experiments with proper measurement and post-analysis.
• Work closely with Product and Engineering to ensure correct event tracking, naming conventions, and data quality.
• Translate data into clear, actionable insights — not just charts.
• Proactively suggest improvements based on observed user behavior.

Mid-Level AI Data Analyst

• Take ownership of core product components from concept to deployment.
• Collaborate with the Product team to design scalable and maintainable architectures.
• Participate in (and lead) code reviews and ensure best practices across the team.
• Mentor junior and mid-level developers, providing guidance and fostering growth.
• Contribute to hiring and onboarding new team members.
• Maintain high code quality and application performance in a fast-paced, high-traffic environment.
• Set up and improve CI/CD pipelines and development workflows.
• Monitor, debug, and improve the stability and scalability of the system.
• Help shape the engineering culture as the team grows.

Lead Full Stack Engineer, NextJS

Content Manager

• Owning the Blog: Architecting, launching, and managing the blog to serve as our primary organic growth engine.
• Driving Organic SEO & Trust: Writing compelling, high-ranking, long-form content that educates searchers and clearly demonstrates the ongoing value of our 5 search funnels.
• Combating Churn: Creating strategic, reputation-building narratives that counteract the friction of our fast-paced acquisition funnels, turning quick conversions into long-term, retained subscribers.
• Global Localization: Collaborating with our teams to ensure your core messaging translates and performs effectively across our highly profitable international markets (EU, UK, US).
• Cross-Departmental Collaboration: Dedicating a percentage of your time to act as a strategic copy resource for Product and Marketing—refining UX/UI copy, lifecycle emails, and high-converting ad creatives.

Senior Copywriter, Content Lead

Conversion Rate Optimizer

• Lead end-to-end optimization cycles: research → hypothesis → design → testing → rollout.
• Perform deep funnel analysis and competitive benchmarking to uncover high-impact opportunities.
• Design high-quality UI/UX mockups that clearly communicate your vision and maintain brand integrity.
• Partner with engineers to ensure flawless test implementation and deployment.
• Maintain uncompromising attention to detail and quality throughout the process.
• Analyze test outcomes with statistical rigor, making confident scaling decisions.
• Document learnings and build a systematic testing roadmap for continuous conversion growth.
• Present insights and results clearly to stakeholders, building alignment and momentum.

Senior CRO Manager

Growth Marketing

• Own and maximise ROAS across all paid channels
• Develop and implement strategies to drive efficient CAC and sustainable growth
• Build growth plans based on LTV:CAC ratios and ARPU
• Identify scaling opportunities across channels while maintaining performance efficiency
• Define and execute the UA strategy across all platforms (Meta/Google, TikTok, etc.)
• Design and implement optimal campaign structures across all active platforms
• Continuously test and refine targeting, bidding strategies, and campaign setups
• Work closely with the creative team to develop high-performing ad creatives
• Identify and test new selling angles, creative approaches, and messaging strategies
• Provide data-driven feedback to guide creative direction across all channels
• Use data-driven insights to inform every strategic and tactical decision
• Build and maintain performance reporting and attribution frameworks
• Own the testing roadmap: A/B tests, geo-expansion, channel scaling, creative iteration

Lead User Acquisition Manager

• Develop web application features using Next.js, React, and TypeScript.
• Implement APIs and backend functionality with guidance from senior engineers.
• Work with databases and caching tools to support application performance.
• Fix bugs and improve existing functionality.
• Write clean, maintainable code following team standards.
• Participate in code reviews and technical discussions.
• Help implement testing to ensure application stability.
• Collaborate with product managers, designers, and engineers to ship new features.

Junior–Mid Full Stack Engineer

Customer Support

• Review and process player withdrawal requests in accordance with company policies and sweepstakes regulations.
• Handle payout-related support tickets.
• Verify player identities and documentation as part of KYC (Know Your Customer) procedures.
• Conduct fraud and risk checks to identify suspicious activity, multi-accounting, or abuse of promotions.
• Escalate suspicious activity to the AML / risk team.
• Ensure all payouts are processed accurately and within defined service level timelines.
• Coordinate with payment providers and internal teams to resolve payout issues or transaction failures.
• Work closely with the customer support team to address player inquiries related to redemptions and payouts.
• Maintain detailed records of payout activity, verification steps, and player documentation.
• Monitor payout workflows and flag operational issues, fraud risks, or process inefficiencies.
• Assist with the development and improvement of payout procedures and internal controls.
• Support audits and compliance checks related to payments, player verification, and sweepstakes regulations.
• Track and report key payout metrics including processing times, approval rates, and flagged accounts.
• Stay up to date with sweepstakes casino compliance requirements, payment provider policies, and fraud prevention practices.

Mid-Level Customer Support Representative – Payouts

• Handle the primary customer support ticket queue efficiently and professionally.
• Address and resolve the most common customer queries quickly and effectively.
• Manage complex or escalated customer issues and ensure proper resolution.
• Coordinate with product, risk, or other internal teams when issues require cross-team collaboration.
• Work towards achieving and exceeding the set Key Performance Indicators and Service Level Agreements to ensure timely and high-quality customer support.
• Strive to reduce incoming support volume by focusing on first-contact resolution, providing comprehensive solutions, and proactively advising customers on best practices.
• Identify and escalate issues beyond your scope to the appropriate teams or individuals.
• Gather valuable customer feedback to help improve our products and services continuously.
• Assist in handling billing queries quickly and efficiently.
• Process refunds when required.

Lead Full-Stack Engineer

Senior Backend Engineer

Senior Legal Counsel

Senior React Native Developer

Senior Growth Product Manager

Senior AI Data Analyst

Mid-Level AI Data Analyst

Lead Full Stack Engineer, NextJS

Senior Copywriter, Content Lead

Senior CRO Manager

Lead User Acquisition Manager

Lead Full-Stack Engineer

Junior–Mid Full Stack Engineer

Mid-Level Customer Support Representative – Payouts

Mid-Level Customer Support Representative – Tickets